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Finding the Third Proportional to 637,872.75 and 987,680.25

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Solution

The third proportional to 637,872.75 and 987,680.25 is: 1,529,321.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    637,872.75 : 987,680.25 = 987,680.25 : x
  2. Step 2: Convert to fraction form
    637,872.75/987,680.25 = 987,680.25/x
  3. Step 3: Cross multiply
    637,872.75x = 987,680.25 × 987,680.25
  4. Step 4: Simplify right side
    637,872.75x = 975,512,276,240.06
  5. Step 5: Solve for x
    x = 975,512,276,240.06/637,872.75
  6. Step 6: Final answer
    x = 1,529,321.13

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Why These Related Problems?

These problems maintain the same ratio (1.55) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.